Consider the function represented by the equation x – y = 3. what is the equation written in function notation, with x as the independent variable?
f(x) = y 3
f(x) = –y – 3
f(x) = –x 3
f(x) = x – 3

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Graph y = -|x| + 2. click on the graph until the correct one appears.